The thing about manufacturing as you may know, is that it easily expands into other areas including if desired, defense $ contracts, O.E.M. and for myself, it's an opportunity to pay for a whole lotta additional research and development.
Not easily, I know a few people with defense contracts making stuff like drone engines etc. it looks like a gold mine until you find out what they have to pay for a staff of lawyers and accountants and contributions.
I make a few non-automotive invention prototypes a year for people and help them get ideas off the ground, as soon as they have any idea that they can sell the product, the smart thing to do is to offshore manufacturing. Like it or not that is the only way to make it these days. I modeled a TIG welding helmet for a company recently, I would have done the mold design too but you couldn't buy the materials in the US for what he had it produced in China for.